How can I create a slice object for Numpy array?

I've tried to find a neat solution to this, but I'm slicing several 2D arrays of the same shape in the same manner. I've tidied it up as much as I can by defining a list containing the 'x,y' center e.g.

cpix = [161, 134]

What I'd like to do is instead of having to write out the slice three times like so: